ASoC: msm: qdsp6v2: Add dynamic chmix config support
Add support to dynamically configure channel mixing weightage
coefficients for both ASM and LSM sessions.
Currently the code is executed only for LSM session and can be
extended to ASM as well.
Change-Id: I727ea6fa2d3a99bbf6811005c5733535f680891b
Signed-off-by: Chaithanya Krishna Bacharaju <chaithan@codeaurora.org>
Signed-off-by: Bhalchandra Gajare <gajare@codeaurora.org>
diff --git a/asoc/msm-pcm-routing-v2.c b/asoc/msm-pcm-routing-v2.c
index b1f0088..5c5d781 100644
--- a/asoc/msm-pcm-routing-v2.c
+++ b/asoc/msm-pcm-routing-v2.c
@@ -802,6 +802,69 @@
return rc;
}
+/*
+ * msm_pcm_routing_send_chmix_cfg:
+ * send the channel mixer command to mix the input channels
+ * into output channels.
+ *
+ * @fe_id: front end id
+ * @ip_channel_cnt: input channel count
+ * @op_channel_cnt: output channel count
+ * @ch_wght_coeff: channel weight co-efficients for channel mixing
+ * @session_type: indicates session is of type TX or RX
+ * @stream_type: indicates either Audio or Listen stream type
+ */
+int msm_pcm_routing_send_chmix_cfg(int fe_id, int ip_channel_cnt,
+ int op_channel_cnt, int *ch_wght_coeff,
+ int session_type, int stream_type)
+{
+
+ int rc = 0, idx = 0;
+ int be_index = 0, port_id;
+ unsigned int session_id = 0;
+
+ pr_debug("%s:fe_id[%d] ip_ch[%d] op_ch[%d] sess_type [%d], stream_type[%d]",
+ __func__, fe_id, ip_channel_cnt, op_channel_cnt, session_type,
+ stream_type);
+ if (!is_mm_lsm_fe_id(fe_id)) {
+ /* bad ID assigned in machine driver */
+ pr_err("%s: bad MM ID %d\n", __func__, fe_id);
+ return -EINVAL;
+ }
+
+ if (ch_wght_coeff == NULL) {
+ pr_err("%s: Null channel weightage coefficients passed\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ for (be_index = 0; be_index < MSM_BACKEND_DAI_MAX; be_index++) {
+ port_id = msm_bedais[be_index].port_id;
+ if (!msm_bedais[be_index].active ||
+ !test_bit(fe_id, &msm_bedais[be_index].fe_sessions[0]))
+ continue;
+
+ session_id = fe_dai_map[fe_id][session_type].strm_id;
+
+ for (idx = 0; idx < MAX_COPPS_PER_PORT; idx++) {
+ unsigned long copp =
+ session_copp_map[fe_id][session_type][be_index];
+ if (!test_bit(idx, &copp))
+ continue;
+ msm_qti_pp_send_chmix_cfg_cmd(port_id, idx,
+ session_id, ip_channel_cnt,
+ op_channel_cnt, ch_wght_coeff,
+ session_type, stream_type);
+ if (rc < 0)
+ pr_err("%s: err setting channel mix config\n",
+ __func__);
+ }
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(msm_pcm_routing_send_chmix_cfg);
+
int msm_pcm_routing_reg_stream_app_type_cfg(
int fedai_id, int session_type, int be_id,
struct msm_pcm_stream_app_type_cfg *cfg_data)